William gshtby shemoit



W. G. SHELTON.

STIRRER.

APPLICATION FILED JAN. 29. 1919.7

Patented Sept. 30,1919.

INVENTOR WITNESS @ontinuation in part ?atented dept. 235d, 193199.

application serial Ho. 25 L541, filed. fieptcmber 18, 1918. Thisapplication filed January 29, 1819. Serial No. 273,736.

To all whom may concern;

Be it known that l, WILLIAM GENTRY SHnL'roN, a citizen of the UnitedStates of .imerice, residing in the borough of Manhattan, city, countand State of New York, have invented certain new and useful Tmprovementsin Stirrers, of which the followis a specification.

This invention relates to stirrers, particularly or the kind used uponcounters of soda fountains for mixing drinks, and .aims to provideimprovements therein.

This application is a continuation in part of my application Serial No.254,541, filed September 18, 1918.

The invention provides a device of great sini licit and embed inntherein a number of desiderata, as regards its serviceability andconvenience of use. Sliding parts necessary to bring the stirrer into orout of position in the glass are avoided. The device is so constructedthat the stirrer, and. its supthe stirrer and its support, in itswithdrawn .p051l31011, will remain in a stable position with the endofthe stirrer pointing downwardly, with its end over the top of the glass,in such manner that the liquid thereon may drip back into the glass whenthe stirrer is lifted. The stirrer is also so mounted that deformationsthereof will not produce a violent movement when it is rapidly rotated.

The stirrer is usually driven by an electric motor this motor andstirrer are mounted as a removable unit in the stirrer support.

A pr erre'd embodiment of the invention is illustrated in theaccompanying drawing.

Said drawing illustrates in Figure 1 the invention in side elevation.Figs. 2 and 3 are elevations at 90 to each other, and partly in mountingof the motor.

in drawing, numeral 1 designates a section, illustrating the resilientstirrer of any suitable construction carried by an arm orsupport 2. Thearm or support 2 is pivotally mounted as indicated at 3, the support 2being conveniently mounted upon a bracket or post l attached to a base5, or directly to a counter or the like. The glass containing the drinkor substance to be mixed rests beneath the stirrer upon the base 5 orother part. Spring clips 6 may be provided for locating and holding theglass in proper position.

The stirrer is preferably directly driven by an electric motor 7, themotor and stirrer preferably being formed as a unit, the two, however,being conveniently connected by a socket or coupling piece 8.Furthermore, the pivoted support 2 is preferably formed with bifurcatedarms 9 through the ends of which pass screws or the like 10 which serveto removably hold the motor and attached stirrer in place.

The pivotal axis 3 is preferably located. somewhat above the base orpart upon which rests the glass, in such manner that the are 1% throughwhich the end of the stirrer 1 moves, is substantially vertical.Preferably, the pivotal axis is about midway of the height of the glassabove the base or part on which it rests.

The pivotal axis is also reterably sufficiently to one side of the axisof the stirrer,

' so that the are 12 is a relatively liat one.

The arm or support 2 and the mounting or post 4: are preferably formedwith complementary front and back stops l3 and it. These stops are soarranged that when the arm 2 with the stirrer 1 is in the forwardposition with the stirrer in place within the glass, that the stirrerstands substantiall vertical therein. The back stops 13 are pre erablyso arranged that when the arm 2 and attached stirrer 1 are in the raisedor withdrawn position, the stirrer points downwardly with its end overthe top of the glass,

i in such manner that liquid thereon may run down the stirrer and dripoil of its end back into the glass. Moreover, the rrangement is suchthat when the arm 2, and the parts carried thereby, is in either itsstirring or raised position, resting upon either the stops 13 or 14, thecenter 0% ravity oi the arm 2 and parts carried there y, is to one sideor the other of a line passing vertically through the pivotal axis 3,whereby the arm 2 and,

llltl parts carried thereby are-in stable equilibrium in either itsstirring or raised position.

As the stirrer 1 is long and unsupported at its lower end, its lower endusually v1- brates when the stirrer is lowered into the glass,and whenthe stirrer begins to rotate.

The result is that the stirrer does not r0- tate on its true axis whenthe motor is started, but has a pendulous motion along with its rotarymovement, which produces a chattering noise, an undesirably rough motionand an undesirable strain upon the parts. These objections are overcomeby resiliently mounting the motor in the support 2 preferabl b lacinsoft rubber bushings betwe en he screi s 10 and the arms 9. Thesebushings .15 are conveniently of the form shown, having an annularindentation or recess 16 andprojecting portions 17 on either sidethereof which embrace the edges of the arms 9 around the holes 18therein. A similar bushing 20 is preferably placed between the niotorand support 2 midway between the axis of the screws 10, 10. This bushing20 may convenienrtly fit in a recess 21 in the motor casing and anopposite recess 22 in the support 2. The electrical feed wires may beled through this bushing 20' to the terminals of the motor. When thusresiliently mounted, the movement of the stirrer rapidly settles down toa true and easy rotation around the axis of the stirrer.

Moreover, if the stirrer becomes sprung so that it is not perfectlytrue, which is the rule rather than the exception, in practical use, themovement becomes so violent as to be very objectionable, unless providedwith a means as described above for resiliently carrying the'motorcasing or other support of the stirrer.

The operation and manipulation of the device is extremely simple. It issimply necessary to place a glass upon the base 5 or corresponding part,and throw the arm back into the glass. The glass may beimmediatelyremoved and another substituted,

in order to repeat the stirring operation.

To repair or replace the'motor, it is simply necessary to loosen thescrews 10 and remove and replace it.

What I claim is 2- 1. A counter stirring device for liquids,

comprising a stirrer, a motor for driving arts remain in stable positionarness said motor and stirrer, whereby said stirrer may be movedinto-and out of a glass, saidsupport and parts carried thereby havingtheir center of gravity movable to either side of a vertical linepassing through the pivotal axis of the pivoted support, said pivotalaxis being approximately midwa of the height of a glass, which isapproxlmately twice the height of said pivotal axis, and means againstwhich said stirrer may rest, with its end pointing downwardly whenwithdrawn from the glass.

2. A counter stirring device for liquids, comprising a stirrer, a motorfor driving the stirrer and a pivoted support carrying said motor andstirrer, whereby said stirrer may be moved intoand out of a glass,saidsupport and parts carried thereby having their center of gravity movableto either side of a vertical line passing through the pivotal axis ofthe pivoted support, said pivotal axis being approximately midway of theheight of a glass, which is approximately twicethe height of saidpivotal axis, and sufliciently far away from the axis of the stirrer,When in the stirring position, for the end of the stirrer 'to movethrough a relatively flat 'arc.

"3. A counter stirring device for liquids,

comprising a stirrer, a pivoted support therefor, whereby'said stirrermay be moved into and out of a glass, said pivotal axis beingapproximately midway of the height of a glass, which is approximatelytwice the height of said pivotal axis.

4:. A counter stirring device for liquids,

comprising a stirrer, a motor and a pivoted support carrying saidstirrer and motor, whereby said stirrer may-be moved into and out of aglass, said pivotal axis being approximately midway of the 'height oil aglass, which is approximately twice the height of said pivotal axis.

' 5. A counter stirring device for liquids comprising a stirrer, a motorand a pivoted support carrying said stirrer and motor, whereby saidstirrer may be moved into and out of a glass, said pivotal axis beingap-" proximatelymidway of the height of a glass, which is approximatelytwice the height of said pivotal axis, and sufficiently far away fromthe axis of the stirrer when in the glass, for the end of the stirrertomove through a relartlvely flat arc.

6. A counter stirring device for liquids,

comprising a stirrer, a pivoted support therefor, permitting saidstirrer to be moved into and out of a glass, said pivotal axis beingapproximately midway of the-height of a lass whieh is approximatelytwice the height of said pivotal axis, and a stop for holding saidstirrer in a downwardly pointed direction with its end over the glass,so

that the liquid thereon may drip back into names the glass when thestirrer is lifted, said stirrer and support having their center ofgravity behind the vertical plane passing through the pivotal axis whensaid stirrer is in its lifted position, whereby the weight of saidstirrer and support tends to keep said parts against said stop when insaid lifted position.

7. A counter stirring device for liquids, comprising a vertical stirrer,a pivoted support therefor, permitting said stirrer to be moved into andout of a glass, said pivotal axis being approximately midway of theheight of a glass which is approximately twice the height of saidpivotal axis, and a stop for holding said stirrer in a downwardlypointed direction with its end over the glass, so that the liquidthereon may drip back into the glass when the stirrer is.

lifted, said stirrer and support having their center of gravity behindthe vertical plane passing through the pivotal axis. when said stirreris in its lifted position, whereby the weight of said stirrer andsupport tendsto keep said parts against said stop when in said liftedposition.

8. A counter stirring device for liquids, comprising a stirrer, a 'motorand a pivoted support carrying said stirrer and motor, permitting saidstirrer to be moved into and out of a glass, said pivotal axis beingapproximately midway of the height of a glass Which is approximatelytwice the height of said pivotal axis, and a stop for holding saidstirrer in a downwardly pointed direction with its end over the glass,so that the liquid thereon may drip back into the glass when the stirreris lifted, said stirrer and support having their center ofgravity behindthe vertical plane passing through the pivotal axis when said stirrer isin its lifted position, whereby the weight of said stirrer, motor andsupport tends to keep said parts against said stop when in said liftedposition. v

9. A counter stirring device for liquids, comprising a stirrer, apivoted support therefor, permitting said stirrer to be moved into andout of a glass, said pivotal axis being approximately midway of theheight of a glass which is approximately twice the height of saidpivotal axis, a stop for bolding said stirrer in, a downwardly pointeddirection with its end over the glass, so that the liquid thereon maydrip back into the glass when the stirrer is lifted, and a stop limitingthe forward movement of the stirrer into the glass, said stirrer andsupport having their center of gravity behind the vertical plane passingthrough the pivotal axis when said stirrer is in its lifted position,whereby the weight of said stirrer and support tends to keep said partsagainst said first-named stop when in said lifted position, said stirrerand support having'their center of gravity in front of said verticalplane passing through the pivotal axis when said stirrer is in itsstirring position in the glass, whereby the weight of said stirrer andsupport tends to keep said parts against said second-named stop when instirring position.

10. A counter stirring device, comprising a rotary stirrer, free at oneend, a pivoted support for said stirrer, and a resilient means ofsupport between said stirrer and pivot-ed support, whereby vibrations ofthe stirrer when set in motion are counteracted and the stirrer broughtto an easy and smooth rotation around its axis.

11. A counter stirring device, comprising a rotary stirrer, free at .oneend, a motor to which said stirrer is directly connected, a pivotedsupport for said stirrer and motor, and a resilient means of supportbetween said motor and pivoted support, whereby vibrations of thestirrer when set in motion are counteracted and the stirrer brought tostirrer when set in motion are counteracted and the stirrer brought toan easy and smooth rotation around its axis.

In witness whereof, I have hereunto signed my name.

WILLIAM GENTRY SHELTON.

